Mr Devlin said doctors later told him he had a ruptured testicle and he had surgery to remove part of it.

The witness told Mr Collins that he was not “overly intoxicated at all” on the night and described himself as coherent and “certainly capable of remembering everything”.

He agreed with Keith Spencer BL, defending, that he told the jury “I think I’m certain” when pointing out the individual he said assaulted him on CCTV played in court.

Mr Spencer put it to him that there was some equivocation in his language. Mr Devlin replied that the individual he identified on CCTV in court was the same person he had pointed out to gardaí on the same footage during the investigation.

He added that saying “I think I’m certain” was about getting it right in court.